Cards which are in the Premium Collection can only be obtained by buying them. They have a limited number of purchase per week. Cards from the Weekly line up and the Gold line up (cards level 7) can be purchased only once in the game so you can't have duplicate. The other cards in the Premium Collection have a limit of 3 or 5 in number of purchase per week.These cards from the Premium Collection does not drop at the end of a mission or using the random roulette, expect the +30 cards.As all cards from the Weekly line up or Gold line up had not yet been put up for sale, it was impossible to have the achievement before the 12/02/2014*. Cards level 7 which drop at the end of a mission are not part of the Premium Collection, it's part of rare cards.

We need 4 weeks to buy all the 15 Premium cards, but the first and the last week don't have to be entire.

*If your are in a hurry, you can change your time zone to the GMT+14 the day before the new line up to put your Xbox 360 at least at the time 00h00. It's more or less interesting according to your time zone.

EDIT (05/02/2014) : I put 2 Bulma's cards to my character, and I did the rank Z in some missions with 5 stars. No Premium cards are dropped !! The Bulma's card is for the rare cards from the cards which are not Premium.I put 2 Bulma's cards to my character, and I did the last mission (the mission 60) in a continuous loop and I never seen a card +100 dropped and no Premium cards too.>> Those who told me that it works are liars, expect someone show us in video that it works ! But nobody can prove it beaucause it's false !!

EDIT (13/02/2014) : If your Xbox 360 is not connected to internet and you play to the game offline by having changed the date to put the next date of Weekly line up, the Weekly line up will never change to the next.

- Weekly line up = 7 days in row- Gold line up = 2 days in row every 15 days after the last Gold line up

Order of sale of Premium card level 7 :

Weekly line up from the 18/01/2014 00h00 to the 25/01/2014 00h00 :- Card n°20 [Energy]+100- Card n°61 Sheron's Glare - Gain 1 extra card when a mission is cleared.- Card n°86 Barrier Body - Reduce all damage taken from enemies.

Weekly line up from the 03/02/2014 00h00 to the 10/02/2014 00h00 :- Card n°30 [Speed]+100 - Card n°50 [Ki Blast]+100- Card n°76 Ki Perfect Control - The amount of EN used when using all moves is greatly reduced.